I don't like comparing different bands to each other as every credible (not manufactured or in it for the money) band always has a sound or something about them which makes the listener like them or hate them.
For me personally Underworld are along with New Order one of my favourite bands but I like them both for totally different reasons. Underworld defined a moment in British/European Dance music within which you could experiment with ideas and create music which was against the music industry establishment's expected norms of Dance music pre-1988 (i.e. not a dodgy session singer singing over dodgy Hi NRG soul or even worse Stock, Aitken & Waterman (sic) etc. tosh!) Everyone's different (some of you will like bands I absolutely detest!) but if you like the dancier stuff New Order have done I defy you to listen to say Rez, Cowgirl, Dark & Long (Dark Train), Skyscraper I Love You, Dirty Vegas, King Of Snake, Pearls Girls, and even though it was done to death with Trainspotting Born Slippy without at least admitting that they along with Orbital RIP, Leftfield RIP, Chemical Brothers, Faithless, etc. have at least made people sit up and take notice of quality Dance music and steer the agenda away from record company fat cats who pimp every innovative genre of music from Jazz to Rock to Hip Hop to Electro to Rave to Dance over the years.
Unfortunately I haven't downloaded the Lovely Broken Thing or Pizza For Eggs stuff Underworld have done so can't comment on that (hope to do so soon) and look forward to hearing their contribution to the soundtrack of the forthcoming Breaking And Entering film. Cheers!